package com.czxy.demo01;

public class BankCard {
     double balance;


    public void drawMoney(double money) throws BankException {
        if(money>balance){
            throw new BankException("大哥没有那么多钱，咱们就别装了");
        }
        balance=balance-money;
    }

    public double saveMoney(double money) throws BankException {
        if(money>5000){
            throw new BankException("大哥能不能少存点，这一下我算不过来");
        }
        balance=balance+money;

        return balance;
    }
}
